HarmonyOS Long List Rendering Solutions: ForEach, LazyForEach, CacheCount, and Component Reuse

This article explains HarmonyOS long‑list rendering techniques, comparing the one‑time ForEach approach with the on‑demand LazyForEach method, and detailing cacheCount and @Reusable component reuse strategies, migration challenges from iOS/Android, ArkTS and C‑API implementations, and performance test results.

HarmonyOSLazyForEachLong List

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HarmonyOS Long List Rendering Solutions: ForEach, LazyForEach, CacheCount, and Component Reuse

JD Tech Talk

Sep 24, 2024 · Frontend Development

Optimizing Long List Rendering on HarmonyOS: ArkTS and C++ Solutions

This article examines the challenges of rendering long lists on HarmonyOS across iOS, Android, and Web platforms, explains the ForEach and LazyForEach mechanisms, and presents practical ArkTS and C++ solutions—including cacheCount, component reuse, and performance optimizations—to achieve smoother UI and lower memory usage.

C++HarmonyOSLazyForEach

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Optimizing Long List Rendering on HarmonyOS: ArkTS and C++ Solutions

JD Cloud Developers

Sep 24, 2024 · Mobile Development

How to Supercharge Long List Rendering on HarmonyOS with LazyForEach and Reuse

This article explains HarmonyOS long‑list rendering challenges and presents practical ArkTS and C++ solutions—including LazyForEach, CacheCount, and @Reusable component reuse—to dramatically improve performance, reduce memory usage, and eliminate frame drops across iOS, Android, and HarmonyOS platforms.

CacheCountHarmonyOSLazyForEach

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How to Supercharge Long List Rendering on HarmonyOS with LazyForEach and Reuse

Taobao Frontend Technology

Mar 15, 2018 · Frontend Development

Mastering Long List Performance in Rax: Scroll, Recycle, and Advanced Techniques

This article provides a comprehensive guide to Rax 0.5's long‑list components, explaining when to use each list tag, how to enable scrolling, optimize performance with RecyclerView, handle refresh, appear, and onScroll events, and organize complex page layouts with sticky headers, nested scrolling, and gesture management.

Long ListRaxRecyclerView

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Mastering Long List Performance in Rax: Scroll, Recycle, and Advanced Techniques